Metallic rope



Oct.: 9,l 11934. J. w. o'r'rsHALK `1,976,491

METALLIC ROPE Filed July V.'51, 1931 u ma INV ENTOR v l Ul Patented Oct. 9, 1934 UNiTED4 STATE 1,976,491 y METALLIC ROPE John W. Gottschalk, Philadelphia, Pa. Application July 31, 1931, Serial No. 554,370

l 1 Claim.

There has been on' themarket for some time a'cleaning and abrading material which is formed froma single strand of Wire which is passed between rolls to Hatten it through a coiling mechamism and therefrom through a set of feeding rolls so that during the travel of the Wire there is imparted to it an inherent tendency to curl. This coiled wire is tangled into a bunch and used as an abradant or cleaner.

f There are many lines of manufacture in which material of this character can be advantageously employed and I have devised from this material a novel metallicirope in which the strands are in the shape of coils which are retained in close relation either by the twist imparted to the strands during, the formation of the rope so that juxtaposed coils interlock, or by securing in any desired manner the various strands in closely juxtaposed relationship, for example, by means of a strand of material wound around the coils.

In some cases instead of `each coil strand having a ,hollow center it may be formed around a core ofgany desired character.

With the above and other objects in view, as will hereinafter more clearly appear, my invention comprehends a novel metallic rope and a novel method of making it.

It further comprehends a novel metallic rope wherein the strands thereof consist of coiled strips which are retained throughout their length in close relationship with juxtaposed strips.

It further comprehends a novel metallic rope made up of coiled strands in which any desired number of the coiled strands may be formed i around a core.

It further comprehends a novel method of making a metallic rope.

Other novel features of construction and advantage will hereinafter clearly appear in the detailed description and the appended claim.

For the purpose of illustrating the invention, I have shown in the accompanying drawing typical embodiments of it, which, in practice, will give satisfactory and reliable results. It is, however, to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized, and my invention is not limited to the exact arrangement and organization of these instrumentalities as retained "in closely juxtaposed relationship `by `1 means of abinder.

Figure 3 isa side elevation of another embodiment of my invention' wherein the diiferentstrands are providedV withV cores.

Figure 4 is a perspective View illustrating diagrammatic'ally one manner in "whichmy novel metallic rope can be manufactured.

Figure 5 is a side elevationof another embodiment of my invention in which the coils are'subure 1, I have shown in this figure a metallic rope 1 embodying my invention and consisting of coiled strands 2, the different coiled strands'having a twist imparted to them in the manufacture so that juxtaposed coils interlock with each other and retain the rope in assembled condition. f

In the embodiment seen in Figure 2, the metallic rope'3 'has its strands of the same formation but they are retained in rope formation by means of a binding strand 4 preferably a wire.

In the form seen in Figure 3 the different strands 5 are formed around a core 6. This core may be of a metallic, fibrous or textile nature, or, in fact, may be of any desired material. In carrying out my invention different strands of material '7, such as, for example, wire, are placed on the bobbins or spools 8. Any desired number of strands may be employed but I have deemed it only essential, for purpose of illustration, to show three strands. These strands pass by a guide 9 and between forming rolls 10 and 11 which may be simply feed rolls or which, if desired, may have a forming action on the wires so as to vary their shape in cross section. The wires pass from the rolls 10 and 11 around the curling mechanism 12 and 13 consisting of offset rods and therefrom between the tensioning rolls 14 and 15 so that the different strands have imparted to them an inherent tendency to curl while under tension and during their continuous feed. The passing of the strand over a curling edge while under tension causes the metal at one side of the metal strand to be stretched thereby imparting to the strand an inherent tendency to form a helical coil. The coiled strands 16 passing from the tension rolls 14 and 15Y are twisted together into a metallic rope 1'7 which is received on the bobbin 18. This bobbin 18 is adapted to revolve on its axis and also to be bodily revolved so that the rope formation is produced as shown in Figures 1, 2 and 3. 'I'he bobbin 18 is mounted in a bracket 19. The gear 20 drives a gear 21 and is mounted on a shaft 22 and for convenienceof illustration the shaft 22 is shown Vvas provided with a pulley 23 thereby adapting it to be driven by any desired source of power. The shaft 22 is journalled in the bracket 19 and provided with a gear 24 which meshes with a gear 2 5 fixed to the spindle 26 of the bobbin 18. It will thus be clear that as the spindle 26 revolves on its axis the bobbin is also bodily revolved so that a finished rope appears as shown in `Figure 1.

The binding wire 4, if employed, may bewoundu around the rope during its manufacture or wards, as may be desired.

In casca coreis employed the wire may be formed around the core.

In the embodiment ofmy invention seen in Figure instead of'the separate coiled strands being twisted into rope formation they are substantially straight and consists of thestrands 27, the juxtaposed coils of which interlock with each other.

In the embodiment seen in Figure 6 the con-r struction is the same as that seen in Figure 5 except that in addition I employ a binding member 28, such as for example, awire whichis Wound aroundthe assembled ,coiledstrands and in this case it is not necessary that juxtaposed coils interlock with each other to maintainjthe'formation of the rope.

yIn .Figure 7 I have shown 4another embodiment of my invention wherein the coiled'strands 2 9 are Wound around a core in the form a helix 30,. This helix, as illustrated, is in the Iform 4of a helically Wound'fiat band but the'shape of the'band in after- 'cross section is immaterial.' This embodiment of my invention seen'in Figure 7 is of special advane tage in cases Vwherein a' smaller amount'ofv the coiled strands is necessary and stillfprovide arope soV of a given diameter.

I yhave found in practice that a metallic rope ofi-this character has a very Wide application'in ,If it is desired to have the coils of juxtaposed coiled strands interlock this can be accomplished by passing the assembled coiled strands through an opening, the walls of which converge towards the discharge end, such as, for example, a funnel so that the coiled strands will be compressed together and the individual juxtaposed coils will interlock with each other.

Where a wire is employed to maintain the assembled coiled strands, it can be applied during the assembly of the strands or afterthe strands have been assembled in rope or other formation as may be desired. Y y

It will lnow be apparent that I have devised a It can also be employed very advantage- 1 new land useful metallic rope rand 'method of making it which embodies the features ofA advantage enumerated as desirable inthe statement of the invention and the above description, and while Iv have, inthe present instance, shown andY described preferred embodiments thereof which will give in practice satisfactory and reliable results,-

it is to 'be understood that -these embodiments are susceptible of modification iii/various particulars without departing yfrom the spirit yor scope of the'invention or sacrificing any of itsV advantages. Y

-YHaving thuskk described Vmy invention whatY I claim` as new and desire to secure by Letters Patent,ris:- V l= yTheherein described metallic rope consisting of metal strands each having the strand fat one sfide stretched to-cause the strands to have an irs inherent tendency to form helical coils said strands being 'arrangedflongitudinal side by side Yand having the coils of juxtaposed strands interlocked.

JOHN W. GOTTSCHALK.

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